<template>
  <div v-show="showFlag" class="food" ref="food">
    <div class="food-content">
      <div class="image-header">
        <img :src="food.image">
        <div class="back" @click="hide">
          <i class="icon-arrow_lift"></i>
        </div>
      </div>
      <div class="content">
        <h1 class="title">{{food.name}}</h1>
        <div class="detail">
          <span class="sell-count">月售{{food.sellCount}}份</span>
          <span class="rating">好评率{{food.rating}}%</span>
        </div>
        <div class="price">
          <span class="now">￥{{food.price}}</span>
          <span class="old" v-show="food.oldPrice">￥{{food.oldPrice}}</span>
        </div>
        <div class="cartcontrol-wrapper">
          <cartcontrol :food="food"></cartcontrol>
        </div>
        <div class="buy" v-show="!food.count || food.count===0" @click.stop.prevent="addFirst">加入购物车</div>
      </div>
      <split v-show="food.info"></split>
      <div class="info" v-show="food.info">
        <h1 class="title">商品信息</h1>
        <p class="text">{{food.info}}</p>
      </div>
      <split></split>
      <div class="rating">
        <h1 class="title">商品评价</h1>
        <ratingselect :onlyContent="onlyContent" :desc="desc" :ratings="food.ratings" :selectType="selectType" @select="selectRating" @toggle="toggleContent"></ratingselect>
        <div class="rating-wrapper">
          <ul v-show="food.ratings && food.ratings.length">
            <li v-for="rating in food.ratings" class="rating-item border-1px" v-show="needShow(rating.rateType, rating.text)">
              <div class="user">
                <span class="name">{{rating.username}}</span>
                <img class="avatar" width="12" height="12" :src="rating.avatar">
              </div>
              <div class="time">{{rating.rateTime | formatDate}}</div>
              <p class="text">
                <span :class="{'icon-thumb_up': rating.rateType===0, 'icon-thumb_down': rating.rateType===1}"></span>{{rating.text}}
              </p>
            </li>
          </ul>
          <div class="no-rating" v-show="!food.ratings || !food.ratings.length">暂无评价</div>
        </div>
      </div>
    </div>
  </div>
</template>
<script>
  const POSITIVE = 0
  const NEGATIVE = 1
  const ALL = 2

  import BScroll from 'better-scroll'
  import Vue from 'vue'

  import {formatDate} from '@/common/js/date'

  import cartcontrol from '@/components/cartcontrol/cartcontrol'
  import split from '@/components/split/split'
  import ratingselect from '@/components/ratingselect/ratingselect'

  export default {
    props: {
      food: {
        type: Object,
        default() {
          return {}
        }
      }
    },
    data() {
      return {
        showFlag: false,
        selectType: ALL,
        desc: {
          all: '全部',
          positive: '推荐',
          negative: '吐槽'
        },
        onlyContent: false
      }
    },
    components: {
      cartcontrol,
      split,
      ratingselect
    },
    methods: {
      show() {
        this.showFlag = true
        this.$nextTick(() => {
          if(!this.scroll) {
            this.scroll = new BScroll(this.$refs.food, {
              click: true
            })
          } else {
            this.scroll.refresh()
          }
        })
      },
      hide() {
        this.showFlag = false
      },
      addFirst(event) {
        if(!event._constructed) return
        Vue.set(this.food, 'count', 1)
      },
      needShow(type, text) {
        if(this.onlyContent && !text) return
        if(this.selectType === ALL) {
          return true
        } else {
          return type === this.selectType
        }
      },
      selectRating(type) {
        this.selectType = type
        this.$nextTick(() => {
          this.scroll.refresh()
        })
      },
      toggleContent() {
        this.onlyContent = !this.onlyContent
        this.$nextTick(() => {
          this.scroll.refresh()
        })
      }
    },
    filters: {
      formatDate(time) {
        let date = new Date(time)
        return formatDate(date, 'yyyy-MM-dd hh:mm')
      }
    }
  }
</script>

<style scoped lang="stylus">
  @import '../../common/stylus/mixin.styl'
  .food
    position: fixed
    left: 0
    top: 0
    bottom: 48px
    z-index: 30
    width: 100%
    background: #fff
    .image-header
      position: relative
      width: 100%
      height: 0
      padding-top: 100%
      img
        position: absolute
        top: 0
        left: 0
        width: 100%
        height: 100%
      .back
        position: absolute
        top: 10px
        left: 0
        .icon-arrow_lift
          display: block
          padding: 10px
          color: #fff
          font-size: 20px
    .content
      padding: 18px
      position: relative
      .title
        line-height: 14px
        margin-bottom: 8px
        font-size: 14px
        font-weight: 700
        color: rgb(7, 17, 27)
      .detail
        margin-bottom: 18px
        line-height: 10px
        font-size: 0
        .sell-count, .rating
          font-size: 10px
          color: rgb(147, 153, 159)
        .sell-count
          padding-right: 12px
      .price
        font-weight: 700
        line-height: 24px
        .now
          margin-right: 8px
          font-size: 14px
          color: rgb(240, 20, 20)
        .old
          text-decoration: line-through
          font-size: 10px
          color: rgb(147, 153, 159)
    .cartcontrol-wrapper
      position:absolute
      right: 12px
      bottom: 12px
    .buy
      position: absolute
      right: 18px
      bottom: 18px
      z-idnex: 10
      height: 24px
      line-height: 24px
      padding: 0 12px
      box-sizing: border-box
      border-radius: 12px
      font-size: 10px
      color: #fff
      background: rgb(0, 160, 220)
    .info
      padding: 18px
      .title
        line-height: 14px
        margin-bottom: 6px
        font-size: 14px
        color: rgb(7, 17, 27)
      .text
        line-height: 24px
        padding: 0 8px
        font-size: 12px
        color: rgb(77, 85, 93)
    .rating
      padding-top: 18px
      .title
        line-height: 14px
        margin-left: 18px
        font-size: 14px
        color: rgb(7, 17, 27)
      .rating-wrapper
        padding: 0 18px
        .rating-item
          position: relative
          padding: 16px 0
          border-1px(rgba(7, 17, 27, .1))
          .user
            position: absolute
            right: 0
            top: 16px
            font-size: 0
            line-height: 12px
            .name
              display: inline-block
              vertical-align: top
              font-size: 10px
              color: rgb(147, 153, 159)
              margin-right: 6px
            .avatar
              border-radius: 50%
          .time
            line-height: 12px
            font-size: 10px
            color: rgb(147, 153, 159)
            margin-bottom: 6px
          .text
            line-height: 16px
            font-size: 12px
            color: rgb(7, 17, 27)
            .icon-thumb_up, icon-thumb_down
              line-height: 16px
              margin-right: 4px
            .icon-thumb_up
              color: rgb(0, 160, 220)
            .icon-thu,b_down
              color: rgb(147, 153, 159)
        .no-rating
          padding: 16px 0
          font-size: 12px
          color: rgb(147, 157, 159)
</style>